Electric-tool handle.



FRED A. ROWLEY, OF SPARTA, MICHIGAN. i

l ELECTBiliC-TOOL HANDLE.

Specification of Letters Patent. Patented Sept. ffii, 1915.

Application led J' une 12, 1912. Serial No. 703,320.

handles, and has for its object to provide al device of this character which embodies novel features of construction whereby the .hand of the operator is effectively insulated and is at the same time prevented from slipping forward and coming into direct contact with the machine. p

A further object of the invention is to provide an electric tool handle of` this character which is comparatively simple and inexpensive in its construction, which can be readily placed in position or removed therefrom, and which will admit of a firm hold or grasp beingobtained by the operator.

'With these and other objects in View, the invention consists in certainy novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features vthereof being pointed outin the appended claim.

For a full understanding of the invention, reference is to be had to the following delscri tion and accom an in@ drawin in which Figure 1 is a perspective view of an electric tool handle constructed in accordance with the invention. Fig. 2 is a longitudinal sectional view through the same, the plug being shown aswithdrawn from the recess in the outer end of the handle. Fig. 3 is a transverse sectional view on the line 3 3 of Fig. 2. Figs-4, 5 and 6 are detail sectional views showing the construction of the plug which closes the recess in the end of the handle and locks the screw against rotation.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference` characters.

- Specifically describing the present embodiment of the invention, the letter A designates the body portion of a handle, which may be formed of any suitable insulating material, such as hard rubber. This body portion A of the handle comprises an outer end portion l which is shaped to form a convenient grip or hand hold, and an inner enlarged portion 2 which fitsrdirectly against the tool and is separated from the grip portion l by means of an annular shoulder 3. The outer portion of the handle 1 is shown as tapered toward opposite ends thereof and suitably curved to admit of a /strong and firm grasp being readily obtained upon the same. -At the same time, it will be noticed that the annular shoulder 3 will serve to prevent the hand of the operator from accidentally slipping forward upon the handle and coming into contact with the tool. The enlarged inner end 2 of the body portion A is recessed and has a nut 4 fitted therein, the said nut being adapted to be rigidly applied to the tool. A screw 5 extends longitudinally through the body portion A and has the inner end thereof threaded in the nut 4;, the outer end of the screw being formed with a head Gwwhich is counter sunk within a recess 7 at the outer end of the handle. If desired, the inner threaded end of the screw 5 may extend beyond the nut 4 so as to engage the tool and provide a means for securing the handle thereto. For the ,purpose of closing the recess 7 and at the same time locking the screw 5 against accidental rotation, a plug 8 of hard rubber or other insulating material is employed. This plug Sis slipped in the recess 7 from the outer end thereof v tion and prevented from working loose.

After the handle hasbeen mounted in position, the operator cani grasp the outer end e portion l thereof without danger of the hand coming into contactwith any of the metallic portions of the handie or tool.

Having thus described` the invention, what l claim as new and desire to secure by Letters Patent, is

The herein ,described tool handle including a body portion having a longitudinal opening extending therethrough and pro-= videdpat one end with a recess which comv municates with the longitudinal opening and has longitudinal grooves in the sidewalls n thereof, a screw extending through the lonitudinal opening of the handle and having a head formed with a kerf and seated 10 verse rib adapted to engage the ker of the screw and being also IJformed at its 'sides with longitudinal ribsV for engagement with the `side grooves of the recess to lock the plug land screw against rotation.

In testimony. whereof I affix my signature 15 in presence of two witnesses.

. FRED A. ROWLEY.-

' Witnesses:

' A. B. CHENEY,

D. J. WALLACE.- 

